EP0212391B1 - Procédé et appareil pour le conditionnement et le prétraitement de graines oléagineuses et fruits oléagineux, en particulier les graines légumineuses - Google Patents
Procédé et appareil pour le conditionnement et le prétraitement de graines oléagineuses et fruits oléagineux, en particulier les graines légumineuses Download PDFInfo
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- EP0212391B1 EP0212391B1 EP86110650A EP86110650A EP0212391B1 EP 0212391 B1 EP0212391 B1 EP 0212391B1 EP 86110650 A EP86110650 A EP 86110650A EP 86110650 A EP86110650 A EP 86110650A EP 0212391 B1 EP0212391 B1 EP 0212391B1
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- European Patent Office
- Prior art keywords
- pressure
- zone
- process according
- oil
- expander
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L11/00—Pulses, i.e. fruits of leguminous plants, for production of food; Products from legumes; Preparation or treatment thereof
- A23L11/30—Removing undesirable substances, e.g. bitter substances
- A23L11/31—Removing undesirable substances, e.g. bitter substances by heating without chemical treatment, e.g. steam treatment, cooking
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
- A23P30/30—Puffing or expanding
- A23P30/32—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment
- A23P30/34—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment by extrusion-expansion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/125—Control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Definitions
- the invention relates to a method and a device for the thermal conditioning of oil seeds and oil fruits, in particular legume seeds and related vegetable raw materials, this material optionally being subjected to an extraction and / or pressing process after cleaning, drying and grinding and, after separation and processing, a suitable one for food purposes Oil or fat and a residue that can be used as concentrate, the meal, is obtained and conditioning is carried out before the extraction and / or pressing process.
- the extraction meal or meal and press cake are of the greatest economic importance as protein-rich concentrate feed, the feed value of which is an important factor in the Based on the operating costs and processing costs of the oilseeds.
- Characteristic for the assessment of the quality of e.g. soybean meal as feed is the content of soluble, i.e. easily digestible proteins (proteins), the content of which should be as high as possible above 45%, and on the other hand a minimum of enzyme activity (urease activity), which - measured in N / g / min / 30 o C - must not exceed a value of 0.3.
- the object of the invention is to provide a method and a device in which the desired conditioning can be carried out faster and more effectively.
- the solution according to the invention consists in a method of the type mentioned, in which the material is briefly heated to temperatures above 100 ° C and above atmospheric pressure in an oxygen-free, in particular water vapor-containing atmosphere, that the treatment time for the thermal conditioning, which is 2.0 up to 2.5 bar is carried out, lies between 0.1 and 5.0 seconds and the material is suddenly relaxed after the specified period of time and cooled to temperatures below 100 ° C.
- the conditioning temperature according to the invention is in particular 105 to 148 ° C., in particular 118 to 135 ° C.
- the pressure here, ie before the sudden relaxation, is in particular 4 to 18 bar and preferably 3 to 6 bar.
- the operating data for the new (thermal) conditioning process listed above can be varied in many ways. So the treatment time is at high temperatures, e.g. B. from 140 to 148 ° C, at little over 1 second.
- the pressure should be about 4.0 to 8.0 bar here.
- treatment times between 2 and 4 seconds are required to achieve the task defined above.
- the new process of high-temperature, high-pressure conditioning with sudden relaxation in an air or oxygen-free atmosphere achieves the following results:
- the urease is broken down or its activity is inhibited due to the heating to the specified high temperatures.
- the proteins are not broken down due to the short heating times at elevated pressures, and the water solubility is significantly reduced. Urea compounds are reduced to a minimum. Stable ureas not attacked. The above-mentioned advantages improve the quality of the shot overall.
- Operational advances include a greatly reduced energy consumption due to the short dwell times, greater extraction (and possibly pressing) performance due to improved percolation speed, thus increasing the overall system capacity, lower residual phosphatide content in the pure oil after degumming or fat, relieving the dryer / Toasters in the shot processing.
- the conditioning stage can be switched on in a process for extracting fat and / or oil from oilseeds and oil crops by extraction and / or pressing, depending on the raw material used, in particular its oil or fat content, in different positions.
- a device for performing the method is characterized by the fact that it consists of a closed system with a material feed zone or pressure build-up zone, high pressure zone and relaxation zone arranged one behind the other, with devices for continuous material feed, with inlet nozzles for water vapor atmosphere in the material feed or pressure build-up zone Inlet nozzles for high-pressure water vapor in the high-pressure zone, with conveying elements connecting the respective zones in the direction of material flow, and with a pressure-building screw conveyor, extruder or expander for the pressure-building zone and the high-pressure zone, the thread sizes of the screw windings gradually tapering from the pressure-building zone towards the high-pressure zone and the Transition from the largest aisle size to the smallest aisle size in the pressure build-up zone is located, with facilities for continuous material removal and with a pressure head with counter pressure element at the discharge end of the high pressure zone.
- Another device for performing the method is characterized by the fact that it consists of a closed system with a material inlet or pressure build-up zone, high-pressure zone and relaxation zone arranged one behind the other, with devices for continuous material feed, with inlet nozzles for water vapor atmosphere in the material inlet or pressure build-up zone , with inlet nozzles for high-pressure water vapor in the high-pressure zone, and with conveying elements connecting the respective zones in the direction of material flow, which at the same time also serve as pressure build-up zones and which are designed as screws or press screws or as expander-like screws, while the high-pressure zone is in the form of a cylindrical pressure vessel, with devices for continuous material removal and with inlet nozzles for water vapor atmosphere also in the relaxation zone, which has at least one screw conveyor.
- a pressure head with a counter-pressure element is provided, with the counter-pressure and thus the pressure inside the device advantageously being able to be regulated.
- a pressure head can be provided, which keeps the outlet opening of the expander or the opening of the die closed by means of an adjustable counter pressure P '' until the pressure P in the expander exceeds the counter pressure P '' of the pressure head, causing the pressure head to move away from the Expander outlet opening or die opening releases and thus releases the exit of the material from the expander.
- the setting of the back pressure P '' i.e. the pressure with which the pressure head rests on the expander or die opening, can be done mechanically via spring elements, but all other suitable elements can also be used for this purpose, provided that they are enable pressure-dependent movement of the pressure head.
- Pneumatic and hydraulic motion drives are particularly suitable; electromagnetic pressurization on the pressure head is also practically advantageous.
- the pressure head can be designed differently depending on its direct function, the type of movement and pressurization (type of drive) and the configuration of the expander opening.
- the only decisive factor is that when the expander is pressed on, it is completely and absolutely sealed so that the process pressure P can build up optimally in the expander, and the required pressure difference P ⁇ P '' is below desired operating conditions undisturbed. This also applies in the event that no processing material is fed to the expander.
- the pressure head can e.g. be spherical or hemispherical, conical, conical, flat, pointed or as a segment of a circle, depending on the shape of the outlet opening to be closed on the expander or the die connected downstream of it.
- FIG. 1 shows the process sequence for seeds with a low to medium oil content, approximately in the order of magnitude between 17 and 45% by weight. It is particularly suitable for processes without pressing, i.e. extracting oil or fat solely by extraction with solvents.
- Suitable raw materials are: Sunflower seeds, soybeans, cotton seeds, beech nuts, hemp seeds, linseed, rapeseed.
- the seed (S) is first cleaned, dried and ground (RTM) in a known manner, warmed to approx. 40-60 ° C (WI), smoothly rolled (GW), further warmed to 80-95 ° C (WII) and in introduced the expander (EXP.) which is particularly suitable for carrying out the method according to the invention.
- the short-term high-temperature high-pressure treatment followed by sudden relaxation in a dryer / cooler (K) is carried out by supplying steam (D). This process described so far is fully continuous.
- the other process steps are state of the art and consist of extraction (Extr.) With solvent (LM), oil extraction ( ⁇ R) consisting of cleaning, deglithinating, distillation etc. and extraction of pure oil (RO) in addition to solvent (LM '), which is used for Extraction is supplied, indirect de-gasing of the shot (EB), direct steam de-gasing (NEB), shot cooling (K) and shot extraction (SCH).
- LM solvent
- ⁇ R oil extraction
- RO pure oil
- EB indirect de-gasing of the shot
- NEB direct steam de-gasing
- K shot cooling
- SCH shot extraction
- the scheme shown in Fig. 2 is particularly suitable for raw materials with a very high oil or fat content, so that pressing before the extraction is required.
- raw materials are: unveiled peanuts, hazelnut kernels, almonds, oil palm kernels, sesame seeds and walnut kernels.
- the stages (RTM), (WI), (GW), (WII) have the same meaning as in FIG. 1.
- the pressing (PR.) Of the raw material is now switched on before the conditioning according to the invention (EXP.) To obtain the press oil (P ⁇ ).
- the remaining steps, such as extraction (EXTR.), Oil cleaning ( ⁇ R), de-benzing (EB), etc. again correspond to the process sequence according to FIG. 1.
- the apparatus or plant according to FIG. 5 which is particularly suitable for carrying out the method for thermal conditioning according to the invention works on the principle of single or multiple screw presses as are known from food, plastic and pharmaceutical technology.
- soybean platelets from 0.4 to 0.6 mm thick, passes through the nozzle (17) in a continuous flow into the feed zone (A) of the pressure build-up system formed from the tub and worm shaft (3) and passes through the compression zone (B ) and the high pressure zone (C) until decompression or expansion in (D) after an optimal pressure (P m ) has been reached.
- inlet nozzles for water vapor of e.g. B. 1-3 bar (10) through which the entire feed area is fed into the nozzle (17) and beyond with a water vapor atmosphere. This ensures that the feed zone is essentially free of air or oxygen and that there is no oxidizing influence on the material to be conditioned.
- the steam fed in via (10) leaves zone (A) partly through the funnel (1), and partly penetrates into the zone (B) within the device.
- the soybean platelets introduced via (1) - which will be used to explain the new process below - initially have a moisture content of approx. 10 - 12 % By weight. They are gripped by the shear elements (12) in the feed zone (A) and begin to build up a mass pressure towards the end of zone (A). This has a value (P a ) of approx. 0.1 X (P m ) at the transition to the compression zone (B) and rises practically linearly into the high pressure zone (C).
- the flight depth of the shear elements (12) in the area of the high-pressure zone (C) has a smallest value (5) compared to the screw width, which widens in the direction of the material feed in zone (A) (2.4 ).
- high-pressure water vapor (9) is introduced into it via a multiple nozzle system (13).
- the pressure of the water vapor above (9.13) was 6 bar in the present case and is generally between 4 and 10 bar.
- the continuously compressed material is partly heated by the steam (9) and partly by additional heating elements (22) to the intended temperature, in special cases to 136 ° C.
- the water content increases to over 12%, in special cases to 18 to 20%.
- a compact, heated and pressurized material has formed in the passage (5) which, via the shear gap (6) and connecting piece (21), expands to a pressure in the atmospheric region into the receiver (7) exit.
- the transition from the high pressure zone (C) into the nozzle (21) or into the calming zone (template) (7) results in a spontaneous, sudden relaxation combined with material cooling to below 100 ° C.
- the template is preferably kept closed and the material via a suitable transport system, e.g. B. a screw (18), which can also be designed like an expander, continuously discharged (S).
- Additional cooling elements (23) can be used to regulate the temperature, single and multiple screw systems, straight or conical, twin screws, screws with different flight sizes, different shear elements, drawn-in knobs for material circulation, those with more than one metering zone (zone of compression B) etc. usable in the above sense.
- the new conditioning process is not tied to the system shown in FIG. 5.
- Other gradual pressure build-up systems such as continuous mixers, pumps, piston elements, etc. are also suitable, provided that the requirements of pressure build-up, the inert atmosphere, the temperature build-up and the spontaneous or sudden expansion or expansion of the compressed material are possible, resulting in a sudden Deterrence from high pressure high temperature to atmospheric conditions and below 100 ° C, possibly to temperatures of 60 - 90 ° C with partial subatmospheric pressures.
- the plant shown chemically in FIG. 6 works on the same principle as the plant according to FIG. 5, ie gradual build-up of the pressure, transition to high pressure through high pressure water vapor and spontaneous or sudden relaxation.
- the material (S) to be conditioned first passes through the hopper (1) to a conveyor unit (24), which is preferably designed as a screw or press screw or as an expander-like conveyor screw. Via line (10), here too - as in the system according to FIG.
- the unit (24) basically forms the feed zone (A) according to FIG. 5. It passes on into the compression zone (B) and from here directly into the actual high pressure zone (C), in the present case constructed as a high pressure vessel (25).
- the vessel (25) (equipped with a manometer (26) and safety valve (27)) is filled with high pressure water vapor via the multiple nozzle system (13) (9) loaded.
- the pressure vessel (25) can of course also be equipped with heating and cooling elements - not shown.
- the high pressure zone (C) builds up in (25).
- the prevailing pressure and temperature conditions largely correspond to the conditions dealt with in FIG. 5.
- the expansion or material expansion takes place according to FIG. 6 - possibly via a suitable valve system (28) - into the receiver (7), the transition from the pressure vessel (25) to the receiver (7) expediently via a second delivery unit (29) takes place, which can be constructed similar to the unit (24). It has proven to be advantageous to also feed the conveying unit (29) with flushing steam (30) in order to maintain an air-free atmosphere until the material has cooled.
- the template (7) serves as a calming zone in which the material cools to temperatures below 100 ° C, in particular due to the vacuum-generating system (34).
- a suction lamp is expediently again used as the vacuum-generating system, although any other technology can be used (vacuum pump, blower, etc.).
- the end of the system is formed by a suitable discharge element for the template (7), for example by rotating locks (18), but can also be formed by screws, appropriately designed slides, valves, etc.
- the material (S-) leaves the plant in an expanded, thermally conditioned, loose form.
- the thickness of the rolling flakes is approximately 0.25-0.3 mm.
- about 350 kg of the material could be conditioned per minute in a single-screw expander of approximately 3000 mm in length (zones A + B + C).
- the maximum temperature at the transition from (C) to (D) was 136 ° C; the maximum pressure (P m ) was 10.5 bar, the expansion with simultaneous cooling to 96 ° C in the template (7) took place within a fraction of a second. After cooling and brief drying, the water content of the slightly crumbly material was 11.1%.
- the bulk weight was about 480 to 520 kg / m3.
- this material After extraction with hexane, solvent and shot separation, this material provided a degummed and physically bleached oil with a total phosphorus content of 0.2 ppm.
- the urease activity in the toasted meal was measured at 0.022 (mg N / g / min / 30 ° C).
- the protein solubility was 75%.
- the water-soluble protein was determined by determining the PDI number (Protein Dispersibility Index).
- the PDI number is given by the amount of nitrogen which dissolves under rapid conditions or centrifugation under standard conditions. It is generally a few units higher than the values obtained by determining the NSI (Nitrogen Solubility Index). Irrespective of the analysis method, the grits produced according to the invention find contents of water-soluble protein which are comparatively twice as high as those obtained by conservative processes, ie without the thermal conditioning in the sense of the invention.
- the total crude oil yield was 99.1% by weight (residual oil in the shot).
- a comparative pretreatment material with a platelet thickness of 0.25 mm gave a grist with a soluble protein content of 38% without the (thermal) conditioning according to the invention.
- the grist had carried out the same conditions on the conditioned soybean material under identical conditions, a pungent, irritating smell of ammonia.
- the measured urease activity was 0.12 mg nitrogen per gram / min / 30 ° C.
- the oil obtained at the same time still had a total phosphorus content of 1.95 ppm in the present case.
- the additional device consists of the actual pressing head (40) of geometry flattened with respect to the expander outlet or the die plate (140, 300).
- the pressure head (40) is pressed against the central opening (130) of the die plate (300) via a spring element (110), which is mounted in guide disks (80) and around the piston (70), and closes during the build-up of the pressure P. in the expander material guide from the expander according to arrow f- sealing the expander outlet (140).
- the die plate (300) is attached to the end flange (200) of the expander via screws and nuts (90). It is also held by support elements (120) at a distance from the end flange (60) of the pressure head (40).
- the expander itself is not shown in FIG. 7, since it was already explained in FIG. 1 in accordance with the main patent and, on the other hand, does not have a direct influence on the construction of the present invention.
- the outlet end area (140) of the expander is given by the end flange (200) and the conveying direction (f).
- Knives (50) can be attached and fastened to the die plate (300) by welding, screwing, etc. These serve to comminute the treated material after it spontaneously emerges from the expander through the outlet gap due to the pressure drop from P to P 'when the pressure head (40) is retracted. In order that the head (40) can retreat unhindered from the expander opening, notches (50 ') are drawn into the press head - cf. also Fig. 7a, which are arranged so that they do not affect the absolutely tight closure of the expander or die opening in the phase of the pressure build-up P.
- the pressure head (40) with spring elements (110) can be separated from the expander end flange (200) at any time and quickly and, if necessary, replaced using the screw connection (90) will.
- the spring (110) can also be loaded or unloaded in the simplest way with the aid of the end screw connection (100), so that depending on the process sequence, for example on a change in the residence time of the material in the expander that has become necessary, on a directed control of the fluid content in the material or another substance-dependent parameter, the pressure P '', ie the back pressure, can be varied during the process.
- the pressure head (40) When the pressure head (40) is placed on the expander outlet opening, the material is pressed by the conveyor unit of the expander (see Fig. 5) in the direction of the arrow (f) against the die plate (300), so that a material jam occurs that determines the product-dependent, previously determined or fixed pressure P. Accordingly, the spring element (110) is set to the counter pressure P ′′ equivalent to the pressure P.
- the spring element (110) presses the pressure head (40) back again (in the direction of the arrow (150') to the left) until it touches the die opening (130) or the die (300) and thus closes the expander or only keeps it open as far as the amount of material is generated (P ⁇ P '') or until the transition from P ⁇ P '' to P> P '' is completed.
- the pressure P in the expander can be controlled by appropriate design of the spring element (110). Conversely, the maximum pressure P given in the expander by the target parameters of the process (treatment time, temperature, pressure or high pressure, fluid content in the material, flowability, desired material quality, volume capacity of the expander, performance of the moving expander parts, etc.) determines the counterpressure P required for carrying out the process ''.
- the pressing head (40) can be in the simplest case as a disk with a circular or similar habit (FIG. 8a). It can also be designed as a truncated cone (Fig. 8b) against a single-hole die or directly against the expander outlet or as a truncated cone, etc. against a multi-hole die (Fig. 8c).
- the geometry of the press head as well as the die used and the end flange of the expander depend on the particularities of the specific process, in particular on the rheological properties of the material processed in the expander.
- the maximum expander pressure P i.e. the working pressure in the expander, at which the spontaneous relaxation to the pressure P 'then takes place, the mass throughput per unit of time, the type and mode of action of the counterpressure element, e.g. Whether springs, hydraulics, pneumatics, etc. determine the design of the pressure head, die, expander end flange and expander outlet opening.
- FIG. 9 shows a further, particularly suitable variant of the device according to the invention. It differs from that according to FIG. 7 by the type of counter pressure element. It is a hydraulic adjustment of the pressure P '' (back pressure). When the expander outlet is closed, the pressure head (240) rests on its end flange (280) or on the die plate (230). The back pressure P '' is set by hydraulics in this preferred embodiment of the invention.
- the pump (p) sucks the hydraulic oil through the filter (f) and pumps it into the pressure line (a). From this a line branches off to the pressure relief valve (v1), while the main oil flow passes the throttle (d). The desired pump pressure and thus the back pressure P '' of the system is set at the pressure valve (v 1). Part of the oil delivered by the pump flows through the throttle (d), while the excess oil flows back into the oil tank (not shown) via valve (v1)
- the line (a) leads to the working cylinder in the hydraulic system (220) and here moves the feed piston, which in turn pushes the rod (210) to move the pressure head (240) against the die (230) or the expander end flange (280 ) - stimulates.
- the pressing head (240) is held with hydraulics (220) on the expander end flange (280). -Screw connection- and the reference numerals (250) for the knives on the die plate (230) or (250 ') for the notches in the pressure head (240).
- the estate showed an irregular water or moisture distribution. Hard, dry zones and wet areas replaced each other. Although the desired thermal pretreatment of the material had taken place, a uniform material that could be fed directly to the extraction was only partially obtained.
- a pressure head (240) was attached to the expander or to the die plate (230 / Fig. 9), which is connected via a suitable hydraulics (220) and rod (210) controlled and set to a pressure (P '') -back pressure- of 18 bar (regulation on the pressure valve v1).
- the oil obtained by extraction with hexane at approx. 66 ° C only had approx. 0.02% by weight of phosphatides after degumming, while this value with otherwise the same starting material, i.e. also thermally pretreated material, but without the use of Device according to the invention on the expander, between 0.3 and 0.6 wt .-% was determined.
- an extraction residue was obtained, the urease activity of which was measured at 0.02 (mg N / g / min / 30 ° C.) compared to 0.12 mg N / g with conventionally obtained pellets (determined after drying and toasting of the residue).
- the pressure head (240) is used in the device for the thermal conditioning of oil seeds and oil crops at the material discharge end of the expander, ie in the area of the transition from the shear gap (6) Fig. 5 of the main patent and nozzle (21) for submission (7) or at the discharge end of the high pressure cylinder (25) Fig. 6 in the area of the valve system (28) which may be forwarded to the template (7) via the conveyor unit (29).
- the type of installation of the pressure head in the outlet channel of the expander or on the die plate or at the material outlet from the high-pressure container (25) is not important for the implementation of the method or the operation of the system, as long as the task of building up pressure followed by spontaneous relaxation is fulfilled. Since the arrangement of the pressure head is a purely constructive problem, which is known to every apparatus engineer, a detailed explanation can be dispensed with.
- the device shown in FIG. 10 is similar to the device shown in FIG. 5, it works on the principle of one
- Expanders i.e. the material is compressed, treated with high pressure steam and expanded.
- the raw material (S) introduced via a suitable metering device (14) and the filling funnel (1), in particular in the form of small plates of 0.4 to 0.6 mm thick, e.g. prepared soy smooth rolling stock, successively the filling and homogenizing zone (A), the transition or pressure build-up zone (B), the maximum pressure zone (C) and the expanding or discharging zone (D).
- the throughput is continuous and is controlled by the metering device (14).
- the inlet connection (17) there are one or more inlet nozzles for water vapor (10), as a result of which the filling zone (A) is constantly occupied with a steam atmosphere.
- the steam leaves zone (A) partly through the funnel (1), partly with the material it reaches the further stages of the plant. This measure ensures that the air is displaced in this area of the device and a practically oxygen-free system is created. As already mentioned, this is of the greatest importance for the new process, so that any type of oxidation reaction is ruled out in the subsequent high-temperature treatment will.
- the material (S) fed continuously via the hopper (1) or the metering device (14) has an initial moisture content of approx. 8 to 12% by weight.
- an intrinsic mass pressure is built up until the end of zone (B) - and beyond - until the moment of expansion at the transition from zone (C) to (D), which at the end of zone (C ) reaches its greatest value (p m ) of, for example, 25 bar (cf. also diagram in the figure).
- This maximum pressure is of course dependent on the type and the passage cross section of the die (20) -example number of holes in a perforated disc and the in the amount of material pushed through.
- the mass pressure (which, as I said, represents a function of the delivery and quantity characteristics) is approx. 3.0 to 3.5 bar and reaches a value (p e ) of at the end of zone (B) approx. 8 bar.
- zone (B) is crucial for pressure build-up the high-pressure water vapor (9) is introduced into it via several distributed nozzles (13). This steam feed is of course regulated and controlled. For reasons of self-evident, measuring and control elements are not shown in the figure.
- the pressure (p m ) initially builds up in zone (A) with the same passage size (4) up to approx. 10 to 20% of the maximum pressure (p m ) -from 25 bar, for example, in order to gradually reach the optimum value due to the decreasing aisle size (2) in zone (B) and a remaining, ie constant aisle size (5) in zone (C).
- High-pressure water vapor is fed in in the area of zone (B), ie between the pressure values (p a ) and (p e ), which include a range of approx. 20 to 30% of the total pressure (p m ).
- zone (C) This gives the material sufficient time before the final pressure is reached to absorb the required amount of moisture and thus weaken the temperature and steam influence in zone (C) again.
- the high pressure steam treatment should be completed at the transition from zone (B) to zone (C).
- the material compressed in zones (B) and (C) is expanded to atmospheric pressure directly after the die (20) - via the outlet connector (21) -in an air-free or oxygen-free room (7) which is closed on all sides, for example is equipped with a continuously operating discharge device (18). It is advantageous to maintain a water vapor-saturated or water vapor-saturated atmosphere in room (7) until the expanded material has calmed down and cooled below approx. 100 ° C. Experience has shown that the dwell time in the calming unit (7) is approx. 1 to 15 minutes in an unpressurized steam atmosphere. After the specified time has elapsed, the expanded material (E) can be discharged, optionally further dried and cooled, and fed to the extraction.
- the device shown in the figure is particularly suitable for carrying out the new process for the thermal pretreatment of legume seeds for oil extraction by solvent extraction. It goes without saying that other systems or systems which differ from the system shown in the general technical design can serve the same purpose, provided the conditions are met the air or oxygen-free atmosphere, the continuous material compression, the high pressure steam treatment at the specified pressures and temperatures, as well as sufficient treatment time.
- the expansion device shown is also not tied to the elements of the figure.
- Single or multi-stage screws or spirals e.g. Cascade systems are used; single, double or multiple screw systems are also suitable.
- the calibration and shaping tools (matrices) (20) adjoining the shear gap (6) can be suitable for the formation of material strands, tubular bodies or other geometric shapes.
- Perforated disks with a large number of bores, mandrel tip and mandrel etc. also serve to expand the expanded material centrally. Dusters also have the effect of increasing the geometric resistance.
- the formation of tubular material strands has a particular advantage with regard to the subsequent drying and cooling of the material. By continuously cutting the tubular body e.g. rotating knives produce a product with a particularly large surface, which not only facilitates the cooling and drying process, but also the extraction (percolation). This considerably reduces the expenditure on apparatus for these stages.
- the device can of course be equipped with suitable, controllable temperature control systems (22) for heating or cooling be, for example, by a circulating oil circuit or an electrical heating device.
- suitable, controllable temperature control systems (22) for heating or cooling be, for example, by a circulating oil circuit or an electrical heating device.
- a previously usual agglomeration of the material (S) before entering the thermal pretreatment is generally not necessary, since the approximately 0.4 to 0.6 mm thick flakes (rolled flakes), for example from soybeans, make this process superfluous.
- a multi-hole washer (20) with hole diameters of approximately 3.8 mm was used as the end of the shear gap (6) - and thus the zone (C) - in front of the end head of the worm shaft (3). That through the perforated disc escaping hot material - which, due to the flash evaporation, caused a vapor curtain to move - then went directly into a calming zone or hot zone (7) filled with water vapor at atmospheric pressure and from there after a dwell time of approx. 2 minutes a discharge screw (18) continuously as the end product of the thermal pretreatment (E) in a cooling and drying unit (not shown).
- Zone (7) was designed in such a way that it could absorb at least 20% by volume of the material introduced into the expander in the unit of time.
- the material had a temperature of max. 145 ° C, the average temperature was not below 130 ° C. When falling into the calming zone (7), the material cooled further. After approx. 2 minutes in this zone and subsequent cooling and drying, a temperature of approx. 55 ° C was reached. The water content was approximately 10.5% by weight; the bulk density was approx. 520 kg / m3.
- this material was extracted with hexane at approx. 66 ° C in countercurrent, whereby known conditions regarding concentration (Miscella) were maintained.
- concentration concentration
- the total crude oil yield was found to be 99.2% (residual oil in the meal).
- the total phosphatide content of the crude oil before further treatment was approximately 4.48% by weight.
- the new process leads to an increased lecithin recovery and associated lower lecithin content in the crude oil after degumming. This makes it possible to optimally refine the oil physically after a bleaching earth treatment, so that the known high costs for refining are considerably reduced and the wastewater problems associated with refining are optimally managed.
- acid precipitation of the residual phosphatides leads to an oil which only contains about 16 ppm of these accompanying substances.
- a completely bare, phosphatide-free (determined over the total phosphorus) cooking oil of pale yellow color resulted.
- the phosphatide mixture separated from the oil was further treated by water treatment and water evaporation and gave a pure lecithin of the best quality in terms of color, smell and taste. It was immediately put to direct recycling for the food and pharmaceutical sectors.
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Claims (25)
- Procédé de conditionnement thermique de graines oléagineuses et de fruits oléagineux, en particulier de graines de légumineuses et de matières premières végétales apparentées, procédé dans lequel cette matière première est soumise, éventuellement après nettoyage, séchage et mouture, à une opération d'extraction et/ou de pressage et il est obtenu, après séparation et traitement ultérieur, une huile ou une graisse qui convient à des fins alimentaires, ainsi d'un résidu - le tourteau - utilisable comme aliment concentré, l'opération d'extraction et/ou de pressage étant précédée d'un conditionnement dans lequel la matière est chauffée brièvement à des températures de plus de 100°C et sous une pression supérieure à la pression atmosphérique, dans une atmosphère exempte d'oxygène, en particulier dans une atmosphère contenant de la vapeur d'eau, caractérisé en ce que la durée de traitement pour le conditionnement thermique, qui est effectué sous une pression de 2,0 à 25 bar, est comprise entre 0,1 et 5,0 s, et en ce qu'à l'expiration du laps de temps prescrit, la matière est détendue brusquement et refroidie à des températures inférieures à 100°C.
- Procédé selon la revendication 1, caractérisé en ce que la température de traitement se situe entre 105 et 148°C.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que la pression de traitement, avant la détente brusque, est de l'ordre de 4,0 à 18,0 bar, de préférence de l'ordre de 5,0 à 10,0 bar.
- Procédé selon la revendication 3, caractérisé en ce que la pression de traitement est créée par de la vapeur d'eau sous haute pression.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le traitement complet est conduit dans une atmosphère de vapeur d'eau.
- Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la détente brusque de la matière est effectuée immédiatement après qu'a été atteinte la pression maximale dans un récipient chargé de vapeur d'eau.
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la matière détendue est refoidie davantage et/ou séchée.
- Procédé selon la revendication 7, caractérisé en ce que la matière détendue est refroidie et/ou séchée davantage par diminution de pression ou création de vide dans le récipient, et elle est ainsi réglée à la température d'extraction de 50 à 65°C.
- Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le conditionnement thermique est effectué à la suite du pressage et avant l'extraction.
- Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le conditionnement thermique est effectué avant le pressage et avant l'extraction qui fait suite à celui-ci.
- Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le conditionnement thermique est effectué plusieurs fois, à savoir de préférence une fois avant le pressage et une fois entre le pressage et l'extraction.
- Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que des graines de légumineuses sont traitées.
- Procédé selon la revendication 12, caractérisé en ce qu'une matière tirée de graines de soja est traitée.
- Dispositif pour l'exécution du procédé selon l'une quelconque des revendications 1 à 13, réalisé sous forme de système fermé et comprenant, à la suite l'une de l'autre, une zone d'introduction de la matière ou zone d'établissement de pression (A,B), une zone de haute pression (C) et une zone de détente (D,6,21,27), avec des dispositifs (1) pour l'alimentation continue en matière, avec des buses d'admission (10) pour créer l'atmosphère de vapeur d'eau dans la zone d'introduction de la matière ou d'établissement de la pression (A,B), avec des buses d'admission (13) pour la vapeur d'eau sous haute pression dans la zone de haute pression (C), avec des éléments transporteurs (3,12) reliant les différentes zones dans la direction de passage de la matière, et avec une vis transporteuse, une extrudeuse ou un expanseur de volume (3,12) générateur de pression pour la zone d'établissement de pression (A,B) et la zone de haute pression (C), les hauteurs des spires (4, 2,5) de la vis transpporteuse (12) diminuant par gradins à partir de la zone d'établissement de pression (A,B) en direction de la zone de haute pression (C), et la transition entre la plus grande hauteur de spires (4) et la plus petite hauteur de spires (5) se trouvant dans la zone d'établissement de pression (B), avec des dispositifs (18) pour l'extraction continue de matière, et avec une tête de contact pressé (40,240) munie d'un élément de contre-pression (110,210) à l'extrémité de sortie (6,12,18,140) de la zone de haute pression (C).
- Dispositif selon la revendication 14, caractérisé par une fente de cisaillement (6) et un outil de formage (matrice) (20) interchangeable à l'extrémité de sortie de la vis transporteuse (3,12) ou à l'extrémité de la zone de haute pression (C).
- Dispositif selon la revendication 15, caractérisé par une matrice (20) qui est réalisée sous forme de disque perforé.
- Dispositif selon l'une quelconque des revendications 14 à 16, caractérisé par des mamelons ou chevilles (19) dans les espaces entre spires (4,2,5) du dispositif transporteur (3,12).
- Dispositif selon l'une quelconque des revendications 14 à 17, caractérisé par des éléments de chauffage ou de refroidissement (22) dans la région du dispositif transporteur (3,12).
- Dispositif selon l'une quelconque des revendications 14 à 18, caractérisé par une tête de contact pressé (40,240) munie d'un élément de contre-pression (110,210) dans la région de raccordement du disque-matrice (300,230).
- Dispositif selon l'une quelconque des revendications 14 à 19, caractérisé par un élément de contre-pression (110,210) qui est réalisé sous forme d'élément à ressort (110), en particulier de ressort à disques, sous forme d'outil hydraulique (210,220) ou sous forme d'outil actionné pneumatiquement ou électriquement.
- Dispositif selon l'une quelconque des revendications 14 à 20, caractérisé par une tête de contact pressé (40,240) qui est réalisée sous forme sphérique, conique, plane, en pointe ou sous forme de segment sphérique.
- Dispositif selon la revendication 21, caractérisé par des entailles (50',250') dans la tête de contact pressé (40,240) pour recevoir des couteaux (50, 250).
- Dispositif selon l'une quelconque des revendications 14 à 22, caractérisé en ce que la tête de contact pressé (40,240) et l'élément de contre-pression (110,210) sont réglables l'une par rapport à l'autre de telle sorte qu'une pression (P'') de l'élément de contre-pression (110,210) s'oppose à la pression (P) dans la zone de haute pression (C) jusqu'à ce que la condition P>P'' soit satisfaite, ce qui fait que la tête de contact pressé (40,240) se sépare de l'orifice de sortie (140) de l'élément transporteur (3, 12), et qu'après l'établissement de l'équilibre de pression P=P'' ou après la première apparition de la relation P>P'', la tête de contact pressé (40,240) soit ramenée en position de fermeture (150,150') par la contre-pression P'' désormais plus élevée que P, ou qu'il s'établisse un équilibre P=P'' qui a pour conséquence une sortie constante de matière à la pression prescrite.
- Dispositif pour l'exécution du procédé selon l'une quelconque des revendications 1 à 13, réalisé sous forme de système fermé et comprenant, à la suite l'une de l'autre, une zone d' introduction de la matière ou zone d'établissement de pression (24), une zone de haute pression (25) et une zone de détente (29), avec des dispositifs (1) pour l'alimentation continue en matière, avec des buses d'admission (10,30) pour créer l'atmosphère de vapeur d'eau dans la zone d' introduction de la matière ou d'établissement de la pression (24), avec des buses d'admission (13) pour la vapeur d'eau sous haute pression dans la zone de haute pression (25), et avec des éléments transporteurs (24,29) qui relient les différentes zones dans la direction de passage de la matière, servent en même temps de zones d'établissement de la pression et sont réalisés sous forme de vis sans fin ou de vis à pression ou sous forme de vis semblables à un expanseur de volume, tandis que la zone de haute pression (25) est réalisée sous forme de récipient de pression cylindrique, avec des dispositifs (18) pour l'extraction continue de matière, et avec des buses d'admission (30) pour créer également une atmosphère de vapeur d'eau dans la zone de détente (29), qui comporte au moins une vis transporteuse.
- Dispositif selon la revendication 24, caractérisé par un récipient (7) à la suite de la zone de détente (29), ainsi que par un système générateur de vide (34).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3529229A DE3529229C1 (de) | 1985-08-14 | 1985-08-14 | Verfahren und Vorrichtung zur thermischen Konditionierung von Ölsaaten und Ölfrüchten, insbesondere Leguminosesamen |
DE3529229 | 1985-08-14 | ||
DE19853544298 DE3544298A1 (de) | 1985-12-14 | 1985-12-14 | Vorrichtung zum konstanthalten des ausgangsdrucks von kontinuierlich arbeitenden expandern |
DE3544298 | 1985-12-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0212391A2 EP0212391A2 (fr) | 1987-03-04 |
EP0212391A3 EP0212391A3 (en) | 1988-02-03 |
EP0212391B1 true EP0212391B1 (fr) | 1992-06-03 |
Family
ID=25835067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86110650A Expired - Lifetime EP0212391B1 (fr) | 1985-08-14 | 1986-08-01 | Procédé et appareil pour le conditionnement et le prétraitement de graines oléagineuses et fruits oléagineux, en particulier les graines légumineuses |
Country Status (3)
Country | Link |
---|---|
US (1) | US4794011A (fr) |
EP (1) | EP0212391B1 (fr) |
DE (1) | DE3685529D1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0326621A1 (fr) * | 1988-01-30 | 1989-08-09 | Amandus Kahl Nachf. (GmbH & Co.) | Procédé et installation pour modifier la qualité de produits alimentaires pour hommes ou animaux par activation et dégermination, respectivement détoxification de produits bruts végétaux ou animaux, en particulier contenant de la graisse et/ou de l'huile, respectivement de produits déjà déhuilés ou dégraissés |
EP0492278A1 (fr) * | 1990-12-20 | 1992-07-01 | Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung | Détoxification de graines |
EP0534573A1 (fr) * | 1991-09-27 | 1993-03-31 | Schouten Group N.V. | Procédé et installation pour réduire la teneur en facteurs anti-nutritionnels dans un mélange de matières alimentaires brutes pour animaux |
WO1994001007A1 (fr) * | 1992-07-03 | 1994-01-20 | Amandus Kahl Nachf. (Gmbh & Co.) | Procede et dispositif de transformation de rognures de betteraves |
US6103918A (en) * | 1996-07-05 | 2000-08-15 | Karlshamns Crushing & Feed Ab | Process of producing glyceride oil having a low content of non-hydratable phosphatides |
US6376689B1 (en) | 1999-09-02 | 2002-04-23 | Cargill, Incorporated | Removal of gum and chlorophyll-type compounds from vegetable oils |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK165217C (da) * | 1986-06-25 | 1993-03-22 | Danisco | Fiberholdigt produkt, fremgangsmaade til fremstilling heraf samt anvendelse heraf |
US5200229A (en) * | 1989-09-06 | 1993-04-06 | Epe, Incorporated | Oil extrusion process |
US5077071A (en) * | 1989-09-06 | 1991-12-31 | Epe Incorporated | Oil extrusion process |
US5271728A (en) * | 1989-11-21 | 1993-12-21 | Buhler Ag | Apparatus with detachable teeth for pressing out raw materials |
US5270062A (en) * | 1992-04-01 | 1993-12-14 | Buchs Gary D | Ruminant animal feed including cottonseed |
EP0689578B1 (fr) * | 1993-03-17 | 1997-11-12 | Unilever N.V. | Procede d'elimination des phospholipides presents dans de l'huile glyceridique |
SE515606C2 (sv) * | 1996-02-28 | 2001-09-10 | Alfa Laval Ab | Utloppsventil anordnad i botten av ett kärl |
EP0891526B1 (fr) * | 1996-04-02 | 1999-10-06 | STRICKER, Urban | Dispositif pour le traitement thermique de matieres en vrac dans des convoyeurs a vis, et procede de sechage de matieres en vrac |
US6168410B1 (en) * | 1997-08-08 | 2001-01-02 | Tnl Industrial Mecanica Ltda. | Apparatus for the expansion and/or heat treatment of oleo resinous material |
US6201142B1 (en) | 1997-12-23 | 2001-03-13 | Bestfoods | Process for recovery of corn oil from corn germ |
US6307077B1 (en) | 1999-08-09 | 2001-10-23 | Robert Michael Quear | Method for purifying vegetable oil obtained by mechanical extraction |
US6348091B1 (en) * | 1999-09-17 | 2002-02-19 | Flint Ink Corporation | Process and apparatus for preparing pigment flush in response to a material property value |
DE10123651A1 (de) * | 2001-05-15 | 2002-11-28 | Westfalia Separator Ind Gmbh | Verfahren und Anlage zur Ölgewinnung aus Früchten oder Saaten |
US6996917B2 (en) * | 2001-10-15 | 2006-02-14 | Crown Iron Works Company | Two stage apparatus for desolventizing food grain meal |
DE602005024009D1 (de) * | 2004-08-17 | 2010-11-18 | Flint Group Inc | Verfahren zur herstellung organischer pigmentdispersionen und tinte |
ITMI20052066A1 (it) * | 2005-10-28 | 2007-04-29 | Air Liquide Italia S P A | Metodo ed impianto per regolare l'assorbimento di ossigeno o di altri gas in fluidi ottenuti dalla macinazione di materie prime |
AU2007275303B2 (en) * | 2006-07-18 | 2011-07-21 | Solenis Technologies Cayman, L.P. | Stable adhesives from urea-denatured soy flour |
DE102008000945A1 (de) * | 2008-04-02 | 2009-10-08 | Bühler AG | Verfahren zur Herstellung von gepressten Produkten aus faserhaltigen Rohstoffen |
CN105080179B (zh) * | 2015-07-31 | 2017-03-01 | 齐齐哈尔医学院 | 中药渗漉提取仪 |
US10645950B2 (en) * | 2017-05-01 | 2020-05-12 | Usarium Inc. | Methods of manufacturing products from material comprising oilcake, compositions produced from materials comprising processed oilcake, and systems for processing oilcake |
RU2698060C1 (ru) * | 2019-04-10 | 2019-08-21 | Общество с ограниченной ответственностью "АгроПетро" | Установка для термической обработки сыпучих пищевых продуктов |
RU192236U1 (ru) * | 2019-05-28 | 2019-09-09 | Общество с ограниченной ответственностью "АгроПетро" | Установка для термической обработки сыпучих пищевых продуктов |
US11839225B2 (en) | 2021-07-14 | 2023-12-12 | Usarium Inc. | Method for manufacturing alternative meat from liquid spent brewers' yeast |
CZ202267A3 (cs) * | 2022-02-11 | 2023-04-19 | Farmet A.S. | Způsob zpracování olejnatých semen a zařízení pro zpracování olejnatých semen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255220A (en) * | 1962-11-06 | 1966-06-07 | Int Basic Economy Corp | Pre-treatment of oleaginous plant materials |
US3764708A (en) * | 1971-08-11 | 1973-10-09 | Kikkoman Shoyu Co Ltd | Method of preparing soy and miso-paste |
DE2722245A1 (de) * | 1977-05-17 | 1978-11-23 | Akzo Gmbh | Herstellung von speiseoel aus rohem sojaoel |
US4384837A (en) * | 1980-07-08 | 1983-05-24 | Oryza Oil & Fat Chemical Co., Ltd. | Apparatus for pretreatment for extracting crude oil from rice bran |
-
1986
- 1986-08-01 EP EP86110650A patent/EP0212391B1/fr not_active Expired - Lifetime
- 1986-08-01 DE DE8686110650T patent/DE3685529D1/de not_active Expired - Lifetime
- 1986-08-07 US US06/894,057 patent/US4794011A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0326621A1 (fr) * | 1988-01-30 | 1989-08-09 | Amandus Kahl Nachf. (GmbH & Co.) | Procédé et installation pour modifier la qualité de produits alimentaires pour hommes ou animaux par activation et dégermination, respectivement détoxification de produits bruts végétaux ou animaux, en particulier contenant de la graisse et/ou de l'huile, respectivement de produits déjà déhuilés ou dégraissés |
EP0492278A1 (fr) * | 1990-12-20 | 1992-07-01 | Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung | Détoxification de graines |
EP0534573A1 (fr) * | 1991-09-27 | 1993-03-31 | Schouten Group N.V. | Procédé et installation pour réduire la teneur en facteurs anti-nutritionnels dans un mélange de matières alimentaires brutes pour animaux |
WO1993005664A1 (fr) * | 1991-09-27 | 1993-04-01 | Schouten Group N.V. | Procede et dispositif de reduction du nombre de facteurs dits antinutritifs dans un melange de matieres premieres destine a l'alimentation pour animaux |
WO1994001007A1 (fr) * | 1992-07-03 | 1994-01-20 | Amandus Kahl Nachf. (Gmbh & Co.) | Procede et dispositif de transformation de rognures de betteraves |
US6103918A (en) * | 1996-07-05 | 2000-08-15 | Karlshamns Crushing & Feed Ab | Process of producing glyceride oil having a low content of non-hydratable phosphatides |
US6376689B1 (en) | 1999-09-02 | 2002-04-23 | Cargill, Incorporated | Removal of gum and chlorophyll-type compounds from vegetable oils |
Also Published As
Publication number | Publication date |
---|---|
DE3685529D1 (de) | 1992-07-09 |
EP0212391A2 (fr) | 1987-03-04 |
US4794011A (en) | 1988-12-27 |
EP0212391A3 (en) | 1988-02-03 |
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